src/hooks/ports/ethernet

   1 #!/bin/bash
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2010  Michael Tremer & Christian Schmidt                      #
   6 #                                                                             #
   7 # This program is free software: you can redistribute it and/or modify        #
   8 # it under the terms of the GNU General Public License as published by        #
   9 # the Free Software Foundation, either version 3 of the License, or           #
  10 # (at your option) any later version.                                         #
  11 #                                                                             #
  12 # This program is distributed in the hope that it will be useful,             #
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  15 # GNU General Public License for more details.                                #
  16 #                                                                             #
  17 # You should have received a copy of the GNU General Public License           #
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  19 #                                                                             #
  20 ###############################################################################
  21
  22 . /usr/lib/network/header-port
  23
  24 # Default MTU
  25 DEFAULT_MTU=1500
  26
  27 # DEVICE equals the actual MAC address of the device.
  28 # If ADDRESS is set, the device will get ADDRESS set for its MAC address.
  29
  30 HOOK_SETTINGS="HOOK ADDRESS DEVICE MTU"
  31
  32 hook_check_settings() {
  33         assert ismac DEVICE
  34
  35         if isset ADDRESS; then
  36                 assert ismac ADDRESS
  37         fi
  38
  39         if isset MTU; then
  40                 assert mtu_is_valid "ethernet" "${MTU}"
  41         fi
  42 }
  43
  44 hook_parse_cmdline() {
  45         while [ $# -gt 0 ]; do
  46                 case "${1}" in
  47                         --address=*)
  48                                 ADDRESS="$(cli_get_val "${1}")"
  49
  50                                 if ! mac_is_valid "${ADDRESS}"; then
  51                                         error "Invalid MAC address: ${ADDRESS}"
  52                                         return ${EXIT_ERROR}
  53                                 fi
  54                                 ;;
  55
  56                         --mtu=*)
  57                                 MTU="$(cli_get_val "${1}")"
  58
  59                                 if ! mtu_is_valid "ethernet" "${MTU}"; then
  60                                         error "Invalid MTU: ${MTU}"
  61                                         return ${EXIT_ERROR}
  62                                 fi
  63                                 ;;
  64                         *)
  65                                 error "Unknown argument: ${1}"
  66                                 return ${EXIT_ERROR}
  67                                 ;;
  68                 esac
  69                 shift
  70         done
  71 }
  72
  73 hook_new() {
  74         local port=${1}
  75         assert isset port
  76         shift
  77
  78         ADDRESS=""
  79         DEVICE=$(device_get_address ${port})
  80
  81         port_settings_write "${port}" ${HOOK_SETTINGS}
  82
  83         exit ${EXIT_OK}
  84 }
  85
  86 hook_up() {
  87         local port="${1}"
  88
  89         local ${HOOK_SETTINGS}
  90         if ! port_settings_read "${port}" ${HOOK_SETTINGS}; then
  91                 log ERROR "Could not read settings for port ${port}"
  92                 return ${EXIT_ERROR}
  93         fi
  94
  95         # Set MAC address, if needed
  96         if isset ADDRESS; then
  97                 device_set_address "${port}" "${ADDRESS}"
  98         fi
  99
 100         # Set MTU
 101         if isset MTU; then
 102                 device_set_mtu "${port}" "${MTU}"
 103         else
 104                 device_set_mtu "${port}" "${DEFAULT_MTU}"
 105         fi
 106
 107         # Bring up the device
 108         device_set_up "${port}"
 109
 110         exit ${EXIT_OK}
 111 }
 112
 113 hook_remove() {
 114         exit ${EXIT_OK}
 115 }
 116
 117 hook_hotplug_rename() {
 118         local port=${1}
 119         assert isset port
 120
 121         local device=${2}
 122         assert isset device
 123
 124         # Read in the conifguration file.
 125         port_settings_read "${port}" ${HOOK_SETTINGS}
 126
 127         # Get the current MAC address of the device.
 128         local address=$(device_get_address ${device})
 129         assert isset address
 130
 131         # Check if the address matches with the configuration.
 132         if list_match "${address}" ${DEVICE} ${ADDRESS}; then
 133                 log DEBUG "Device '${device}' equals port '${port}'."
 134
 135                 hook_create "${device}"
 136         fi
 137
 138         log DEBUG "Device '${device}' does not equal port '${port}'."
 139         exit ${EXIT_ERROR}
 140 }